AREVA ESM-3D LB LOCA Extended Statistical Methodology based on CATHARE 3D
ESM-3D is a fully-extended statistical method applied to the safety analyses of LB LOCAs, with the CATHARE code and a 3D modeling of the reactor vessel, developed jointly by AREVA and EDF. Uncertainties on the important parameters are propagated throughout the transient calculation and target results are estimated at 95％ probability and 95％ confidence levels using a non parametric statistical method based on Wilks’ theorem. ESM-3D benefits from the CATHARE 2 V2.5 version features, including 3D capabilities, upgraded physical laws, high numerical performance, enabling to perform the numerous calculations required by a non-parametric statistical method. ESM-3D also integrates state of the art knowledge and know-how regarding physical analysis of the transient or code bias and uncertainty identification. Moreover, provisions have been made which allow integration of recent research findings related to high burn-up fuel and of possible evolution of the current regulatory requirements. A fully-integrated pre/post processor (MAGIC) is used to automatically prepare the code input deck with respect to the related random uncertainty vectors, to run the steady state then transient calculations, and to manage statistical treatment of results. ESM-3D has been used for the Final Safety Analysis Report of the first built EPRTM-type reactor (Olkiluoto 3) and can be applied to any PWR reactor.
LB LOCA CATHARE ESM-3D DRM
P. Attal M.-C. Grouhel J.-Y. Sauvage
AREVA NP Tour AREVA, Cedex 16 Paris-la Défense 92084, France
国际会议
上海
英文
1127-1138
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）